Date: 12 December 2002
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AUSCERT External Security Bulletin Redistribution
ESB-2002.693 -- HP Support Information Digest HPSBUX0212-231
SSRT2434 Sec. vulnerability with HP-UX Visualize Conference
12 December 2002
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AusCERT Security Bulletin Summary
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Product: HP-UX Visualize Conference B.11.00.11
Vendor: Hewlett-Packard
Operating System: HP-UX 11.00
HP-UX 11.11
Platform: HP9000 Series 700
HP9000 Series 800
Impact: Increased Privileges
Inappropriate Access
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Source: HEWLETT-PACKARD COMPANY
SECURITY BULLETIN: HPSBUX0212-231
Originally issued: 11 December 2002
SSRT2434 Security vulnerability with HP-UX Visualize Conference
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NOTICE: There are no restrictions for distribution of this Bulletin
provided that it remains complete and intact.
The information in the following Security Bulletin should be
acted upon as soon as possible. Hewlett-Packard Company will
not be liable for any consequences to any customer resulting
from customer's failure to fully implement instructions in this
Security Bulletin as soon as possible.
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PROBLEM: The installation of HP-UX Visualize Conference leaves
certain directories with insecure permissions.
IMPACT: Potential increase in privileges, unauthorized access.
PLATFORM: HP 9000 Series 700 and 800, HP-UX 11.00 and 11.11 systems
which have ever installed HP-UX Visualize Conference
version B.11.00.11.
SOLUTION: Change the insecure directory permissions.
MANUAL ACTIONS: Yes - NonUpdate
Change ownership and permissions as follows:
/etc/dt 755 bin/bin
/etc/dt/appconfig 755 root/sys
/etc/dt/appconfig/icons 755 root/sys
/etc/dt/appconfig/icons/C 755 root/sys
/etc/dt/appconfig/types 755 root/sys
/etc/dt/appconfig/types/C 755 root/sys
AVAILABILITY: This bulletin will be revised when a product
update is available.
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A. Background
If HP-UX Visualize Conference version B.11.00.11 has ever been
installed on an 11.00 or 11.11 system the permissions of
certain directories may be insecure.
The installation of HP-UX Visualize Conference may leave
certain directories with insecure permissions. The
vulnerability is not with the HP-UX Visualize Conference
product itself, but rather with the state of the directory
permissions after HP-UX Visualize Conference has been installed.
The vulnerability remains even after HP-UX Visualize Conference
is removed.
The problem arises if the directories do not exist at the time
HP-UX Visualize Conference version B.11.00.11 is installed.
Therefore not all systems with HP-UX Visualize Conference
version B.11.00.11 are vulnerable. Also once the directory
permissions are corrected a subsequent reinstallation of
HP-UX Visualize Conference version B.11.00.11 will not alter
the permissions.
B. Recommended solution
Change the insecure directory permissions using the following
procedure or the equivalent:
As root create a script "chown_chmod":
#!/sbin/sh
# chown_chmod root:sys 755 file
chown $1 $3
chmod $2 $3
Then:
chown_chmod bin:bin 755 /etc/dt
chown_chmod root:sys 755 /etc/dt/appconfig
chown_chmod root:sys 755 /etc/dt/appconfig/icons
chown_chmod root:sys 755 /etc/dt/appconfig/icons/C
chown_chmod root:sys 755 /etc/dt/appconfig/types
chown_chmod root:sys 755 /etc/dt/appconfig/types/C
C. To subscribe to automatically receive future NEW HP Security
Bulletins from the HP IT Resource Center via electronic
mail, do the following:
Use your browser to get to the HP IT Resource Center page
at:
http://itrc.hp.com
Use the 'Login' tab at the left side of the screen to login
using your ID and password. Use your existing login or the
"Register" button at the left to create a login, in order to
gain access to many areas of the ITRC. Remember to save the
User ID assigned to you, and your password.
In the left most frame select "Maintenance and Support".
Under the "Notifications" section (near the bottom of
the page), select "Support Information Digests".
To -subscribe- to future HP Security Bulletins or other
Technical Digests, click the check box (in the left column)
for the appropriate digest and then click the "Update
Subscriptions" button at the bottom of the page.
or
To -review- bulletins already released, select the link
(in the middle column) for the appropriate digest.
To -gain access- to the Security Patch Matrix, select
the link for "The Security Bulletins Archive". (near the
bottom of the page) Once in the archive the third link is
to the current Security Patch Matrix. Updated daily, this
matrix categorizes security patches by platform/OS release,
and by bulletin topic. Security Patch Check completely
automates the process of reviewing the patch matrix for
11.XX systems.
For information on the Security Patch Check tool, see:
http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/
displayProductInfo.pl?productNumber=B6834AA
The security patch matrix is also available via anonymous
ftp:
ftp://ftp.itrc.hp.com/export/patches/hp-ux_patch_matrix/
On the "Support Information Digest Main" page:
click on the "HP Security Bulletin Archive".
D. To report new security vulnerabilities, send email to
security-alert@hp.com
Please encrypt any exploit information using the
security-alert PGP key, available from your local key
server, or by sending a message with a -subject- (not body)
of 'get key' (no quotes) to security-alert@hp.com.
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(c)Copyright 2002 Hewlett-Packard Company
Hewlett-Packard Company shall not be liable for technical or
editorial errors or omissions contained herein. The information
in this document is subject to change without notice.
Hewlett-Packard Company and the names of HP products referenced
herein are trademarks and/or service marks of Hewlett-Packard
Company. Other product and company names mentioned herein may be
trademarks and/or service marks of their respective owners.
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